We have the Yoyo 3 and find it really convenient, as you can pop it in the overhead locker on the plane. Saw a few other people with Yoyos on the plane, and also someone with a Joie of some sort that was pretty flat, but they weren't in my flight, so I have no idea if it went on the plane or not.
I've heard that the silver cross clic is good. It fits on the plane too! I've been researching as we are going away in August xx
We’re loving the joolz aer+! Also cabin approved, tall seat so will last long, super lightweight and with 10 year transferable warranty!
Following!